Nick.Simultec replied 3 years ago

Hi Andrew,

we are using OpenGL 2.0 (we can use 3.0 as well), and that’s it.

The whole story is that we seriously consider to use truSKy for our DirectX11/12 Havok Image Generator for most of our high end projects, also OpenGL version for some smaller projects as well. SInce I am not DirectX engineer at the moment I am to test it with the OpenGL platform.

I went a bit further since yesterday when I post my first question. I generated OpenGL 2.0 glad loader and built the samples and it worked too. Also I was able to wrap up the sample code into plugin for our. IG with mixing of GL2 headers and glad, but that is working only in debug in release it crashes.

I used trueSky 10 years ago on a different project and the integration with OSG was very smooth but I forgot the details :).

Thanks a bunch for any hints and help. It will be awesome if we can get GL2/3 version.

Cheers,
Nick

Nick.Simultec replied 3 years ago

Hi Andrew,

I put the following line in my code and I am still getting the debug overlays
mTrueSkyRenderer->debugOverlays = simul::clouds::DebugOverlays::NONE;

Do you have any further hints?

Thanks a bunch!

Cheer,
Nick

Nick.Simultec replied 3 years ago

Hi again Andrew,

first take my apologize for lots of questions ;-).

After reading a bit more the code and trying different things I figured out that this line is causing the debug quads:
mTrueSkyRenderer->GetSimulWeatherRenderer()->GetCloudRenderer()->RenderCrossSections(deviceContext);

Anyway, I don’t needed it. I have (partially) what I need for the moment. A bit of more progress:
https://pasteboard.co/JSLoXBZ.jpg

As you can see in the image the frame buffer is flipped. I need to resolve this. Also how to render the sky too. I can not get it rendered even I have set mTrueSkyRenderer->SetRenderSky(true);

and then the DepthBuffer, but I think I have a handle of it to give it through external Texture2D.

I think after resolving these issues I will be fine for a moment and will have a solid state for testing the real features of trueSky

Thanks a bunch again!

Cheers,
Nick

Nick.Simultec replied 3 years ago

Hi Andrew,

I figured that out. Also I am able to load my simple scene so I think for now I am good :-). I will sure have more questions. Thanks for the support so far!

Here some snapshot
https://pasteboard.co/JSMFSUBB.jpg

Cheers,
Nick

Nick.Simultec replied 3 years ago

Hi Andrew,

I am struggling with providing my own OpenGL Depth Texture2D. I see in the sample code this and also in the documentation, but for me is not clear, these void* pointers that seams to be not documented well

auto hdrDepth = (simul::opengl::Texture*)mHDR_MSAA_Fbo->GetDepthTexture();
mExternalDepth->InitFromExternalTexture2D(mRenderPlatform, (void*)hdrDepth->GetGLMainView(), nullptr, false, true, simul::crossplatform::UNKNOWN, false, false, true, hdrDepth->GetSampleCount());

My question is how to wrap up existing GL Texture2D with simul Texture

My intention is to make flight through the clouds and have the sky always rendered first. If there are any other hints they are appreciated !

Thanks a bunch once again!

Cheers,
Nick

Nick.Simultec replied 3 years ago

Hi again,

finally I managed to have my external depth buffer working as a simul::crossplatform::texture with the trueSky Renderer. There is something with the settings I guess since my image is black now. Will keep studying the code

Cheers,
Nick

Andrew Richards Staff replied 3 years ago

Hi Nick,

Sorry for the delay in getting back to you on this issue.
It’s good to hear that you have trueSKY working OpenSceneGraph IG, and thank you for your posts for the community.

Best Wishes,
Andrew